Jerk in preventer



p i 3, 1958 3., c. BAGGOTT 2,829,677

I JERK IN PREVENTER File d May a, 1955 46 INVENTOR 2 ATTORNEY UnitedStates Patent *Ofiice 2,829,677 Patented Apr. 8, 1958 JERK IN PREVENTERBubber Conroy Baggott, West Columbia, S. C.

Application May 6,1955, Serial No. 506,414

1 Claim. (Cl. 139260) This invention relates to the textile industry andmore particularly to machinery for weaving fabrics in which the shuttlesare automatically replenished and means are provided to prevent theloose ends of thread from being drawn into the fabric.

Heretofore, various type of equipment have been used in connection withweaving to assure a fine quality fabric so that all of the fabricproduced may be sold at a premium price. However, difiiculty has beenexperienced in disposing of the loose ends of weft thread which resultfrom the exhaustion of the weft thread on the bobbin of the shuttle.These loose ends frequently are drawn into the fabric by a movement ofthe shuttle after the shuttle had been refilled with a new bobbin.Although some effort has been made to overcome this problem, and variousdevices have been used, these devices have not proven satisfactorybecause the loose ends of the weft thread would not be adequatelyretained by such devices for a sufiicient length of time to prevent suchloose ends from being drawn into the fabric.

An object of the present invention is to overcome the defects of theprior art and to provide a device which can be applied to existing loomswith a minimum of effort to prevent loose ends of thread from beingdrawn into the fabric being woven.

A further object is to provide a loom with a means to prevent jerked inthreads of filling material in fabric being woven.

Another object of the invention is to provide an attachment for shuttlefeelers with means to engage and retain a thread, draw the thread out ofthe path of the shuttle and maintain such thread out of the way.

A further object is to provide a structure which will engage, retain andwithdraw a thread out of the path of a shuttle.

Other objects and advantages of the invention will be apparent from thefollowing description taken in conjunction with the accompanyingdrawings wherein:

Fig. 1 is a fragmentary perspective of a portion of a loom showing ashuttle box, a shuttle feeler with the loose end retaining attachmentapplied thereto;

Fig. 2, an enlarged plan view of a shuttle feeler with the attachmentapplied thereto and showing a fragment of the body portion of thefeeler;

Fig. 3, a fragmentary section taken transversely to the direction ofmovement of the shuttle showing the relation of the brush of theattachment with respect to the feeler tip and the shuttle;

Fig. 4, a fragmentary perspective of a different shuttle feeler bodyhaving a straight shank and showing another form of the loose endretaining attachment applied thereto;

Fig. 5, an alternate form of shuttle feeler supporting bracket for usewith the feeler shown in Fig. 3; and

Fig. 6, an enlarged view of the brush of the attachment formed ofcarding cloth.

Referring more particularly to the drawing, a portion of a breast beamof a loom supports a magazine 11 Gil having reserve bobbins for fillinga shuttle 12 which is shown housed in a shuttle box 13, such shuttlebeing thrown by suitable means (not shown) through the shed formed bythe warp threads 14 of the fabric 15, the shuttle carrying the bobbinsof weft threads in the usual manner. Upon exhaustion of the weft threadin the bobbin of the shuttle, the shuttle is returned to its box 13 by athrowing device on the other side of the loom. A feeler having asupporting body portion 16 pivotally mounted on a stud 17 fixed to afeeler supporting bracket 18 which in turn is adjustably mounted on thebreast beam 10 by means of bolts 19 or the like received in elongatedslots 20 on the base portion of the feeler is adjustable for propercooperation with the shuttle 12. The feeler body portion 16 has securedto its outer end a feeler tip portion 21 which is secured to anupstanding lug 22 of the feeler body portion by means of a bolt 23passing through a lug 24 of the feeler tip portion 21 and the lug 22 ofthe feeler body supporting portion 16. An L-shaped bracket having asupporting arm 25 with a twist 26 therein has an aperture formed in itsend 27 and is secured to the lugs 22 and 24 by means of bolt 23 therebysecurely maintaining the L shaped bracket in position on the feeler. Theother arm 28 of the L-shaped bracket has a wire brush 29 affixedthereto, such wire brush being formed of conventional carding cloth withthe individual teeth 30 extending upwardly and forwardly of the loomtoward the knee 31 of the L-shaped bracket.

The shuttle box 13 is provided with a cut-out 32 which receives thebrush 29 and other arm 28 of the L-shaped bracket with the teeth of thebrush 29 extending above the lower 32A surface of the shuttle box toengage a loose end of thread 33 as shown in Fig. l, the teeth 31)serving as a detent to permit the brush 29 to pass under each loose endof thread 33 and drawing such loose ends of thread 33 with the brush 29upon the forward or clockwise motion of the feeler body 16 and tip 21after the shuttle has been refilled with a new bobbin whereby theshuttle feeler and brush are moving out of the path of the shuttle andweaving may continue until the thread on the bobbin is exhausted.

The thread end 33 is held securely by the brush 29 because of the largearea of contact, the direction of the teeth and the tendency of theteeth to retain the thread similar to the way a wire hair brush retainsloose hair thereon. The portion of the loose end of thread 33 adjacentthe fabric 15 is drawn into a thread cutter 34 which severs the looseend and such loose end may be disposed of in any manner.

The shuttle feeler is operated in a well known manner by means similarto that shown in the patent to Draper et :11, 2,317,744, and includes atransverse shaft 35 which is responsive to the exhaustion of the fillingthread in the shuttle and upon such exhaustion suitable mechanism rockssuch shaft in a clockwise direction while an arm 36 fixed on the shaftmoves a pivot 37 carrying a forked lever 38 which engages a pin 39 fixedon the body portion 16 of the shuttle feeler. The lever 38 isresiliently held in operative position by means of a spring 40 securedto a fixed part of the machine and to an extension of the lever 38, suchlever 38 having a limited clockwise motion because of engagement with aprojecting stop 41. The spring 40 serves as a safety de vice to preventbreakage in the event that the shuttle 12 is not in its proper positionwhen the tip portion 21 of the feeler is moved to the position shown inFig. 1, and if the feeler cannot move to its operative position thebobbin cannot be changed.

Referring to Figure 3, a slightly difierent shape shuttle feeler bodyportion 42 is provided with a hollow hub 43 for mounting upon a stud orthe like 17 (Fig. 1)

gen er? 2% while a pin 44 on the body portion is adapted to cooperatewith the forked lever 38. Another form of feeler supporting bracket isshown in Fig. 5 and includes a body portion 45 provided with elongatedopenings 46 for cooperation with fastening means similar to bolts 19 V(Fig. 1) for attachment to the breast beam 10 of a loom and one leg 47of the bracket is provided with an aperture 48 for receiving a bolt orstud like 17 about which the feeler body 42 may oscillate with its hub43 coopcrating with such stud.

Referring to Fig. 4, a different form of feeler supporting body 49 isprovided with a straight shank 50 which is secured to a cooperatingstraight shank 51 of the tip portion 52 of the shuttle feeler suchshanks being secured together by means of a bolt 53 which also securesupwardly extending lug 54 fixed on one arm 55 of an L-shaped bracket,the other arm 56 of such bracket having a brush 57 formed of cardclothing or the like fixed thereto by any suitable means such as bolts,rivets, staples or the like. One form of brush which has beensuccessfully used includes a backing of canvas 58 with Wire teeth fixedthereto, such wire teeth extending upwardly and forwardly toward theknee 59 of the L-shaped bracket. The brush 57 has been shown as beingformed of card clothing which is a well known item of manufacture incarding wool or other fibers.

It will be apparent that applicant has provided a new and usefulattachment for a loom to prevent the loose ends of filling thread frombeing drawn back into the cloth, thereby avoiding any danger ofimperfection in the finished cloth. The invention is useful on all typesof natural and synthetic fabrics and the direction of slope .4 of theteeth has been found to be especially useful since the loose ends ofthread may easily pass over the brush in one direction but such looseends are prevented from passing over in the other direction and,therefore, the improvement meets a long standing need.

It will be obvious to those skilled in the art that various changes maybe made in the invention Without departing from the spirit and scopethereof and therefore the invention is not limited by that which isillustrated in the drawing and described in the specification, but onlyas indicated in the accompanying claim.

What is claimed is:

For use with a shuttle feeler having a feeler tip portion and asupporting body portion, an attachment comprising an L-shaped bracket,means to attach one arm of the L-shaped bracket to the connectionbetween the shuttle feeler tip portion and the body portion thereof,uninterrupted carding cloth having wire teeth and mounted on the otherarm of said L-shaped bracket with the wire teeth thereof extendingupwardly and toward the first arm whereby the attachment will be causedto pass under a thread end and draw such thread end out of the path ofthe shuttle to prevent such thread end from rendering the clothdefective.

References Cited in the file of this patent UNITED STATES PATENTS1,019,265 Lussier Mar. 5, 1912 1,350,613 Lacey Aug. 24, 1920 2,141,062Drolet Dec. 20, 1938

